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用小波进行图像处理,以及一个QPSK调制程序,还有用MATLAB实现二维小波分解与重构程序,请大家指正-wavelet image processing, and a QPSK modulation procedure, there are two-dimensional MATLAB wavelet decomposition and reconstruction process, please correct
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小波脊线提取算法研究,用于信号调制类型识别-Wavelet ridge extraction algorithms for signal modulation type recognition
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2008 Congress on Image and Signal Processing 2008 Congress on Image and Signal Processing-Image Encryption Based on Chaotic Modulation of Wavelet Coefficients
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用matlab编写的信号处理之QPSK调制与解调程序,均衡,OFDM仿真,小波变换,卡尔曼滤波等等14个程序源代码-Written by matlab signal processing of the QPSK modulation and demodulation process, a balanced, OFDM simulation, wavelet transform, Kalman filtering, etc. 14 source code
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modulation type identification methodes using wavelet transform methode for adaptive
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This paper presents an algorithm for modulation
recognition of received signals in the presence of additive
white Gaussian noise (AWGN) with the use of the wavelet
transform
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Wavelet packet modulation
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本文利用小波以及小波包在数字信号处理中表现出来的优势,将其应用到变换域通信(TDCS)中。针对基于傅里叶变换估计方法无法对非平干扰进行有效估计的缺点,于是小波技术被应用于谱估计中。作为TDCS通信前端的频谱感知阶段所应用的数学工具,进行频谱感知,小波变换可以确定干扰所在频段以及创建小波基函数,用于数据传输。并且将其与其他变换方式的应用场合以及性能进行对比。并且针第二代小波良好的数据压缩性能,拟将其应用于TDCS中,对干扰频谱进行进一步压缩-The article utilized the adv
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提出了一种鲁棒的多水印嵌入与检测算法,该算法基于小波域,且提取水印时不需要原始图像,保护了原始图像的安
全。在该多水印算法中,提出并使用了一种将密码学和常规的数字水印制作方法- - - 叠加法和量化调制法,有机结合起
来的新的方法,在水印嵌入时,不同的水印,生成与该水印相关的不同的密钥,在进行水印的提取时,用不同的密钥和待测的
图像提取出相应的水印。通过将密钥向第三方注册,可以获得对原始图像的所有权。-A robust multi-watermark embedding and de
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Automatic Modulation Recognition Using Wavelet Transform and Neural Networks
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小波神经网络的信号调制识别研究小波神经网络的信号调制识别研究-Wavelet neural network identification of signal modulation wavelet neural network identification of signal modulation
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本文首先介绍了已有的调制识别方法:判决理论识别方法和统计模式识别方法[9],然后详细介绍了基于小波变换调制识别过程,最后分析了数字信号调制识别技术的发展前景。-This paper first introduced the existing modulation identification method: Decision theory identification method and statistics pattern recognition method, Then detailed
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OFDM is multicarrier modulation (MCM) technique which provides an efficient means to
handle high speed data streams on a multipath fading environment that causes ISI. Normally
OFDM is implemented using FFT and IFFT’s. To decrease the BW waste bro
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OFDM is multicarrier modulation (MCM) technique [1] which provides an efficient means to
handle high speed data streams on a multipath fading environment that causes ISI. Normally
OFDM is implemented using FFT and IFFT’s. To decrease the BW waste
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快速morlet小波变换在调制识别中的matlab仿真-Quick morlet wavelet transform in modulation recognition matlab simulation
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APF的模型,采样ip-iq法进行谐波提取,PI控制作为补偿算法,三电平spwm作为调制方式,在网侧添加了LCL滤波,个人感觉效果还不错,准备再添加重复控制,在谐波提取方面采样DFT来尝试-APF model, sampling ip-iq method for harmonic extraction, PI control as compensation algorithms, three-level spwm as modulation, the network side added a L
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提出了一种多迸制频移键控(M娲K)信号调制分类及解调方法,选取截获接收机输出的MFSK信
号的时频脊线作为分类特征,利用无监督聚类算法求取最佳聚类数M.利用时频脊线的Ham:小波变换
估计码元宽度,并且利用对应最佳聚类数的聚类中心确定抽判门限,通过对时频脊线抽样判决,实现了
MFSK信号的解调.理论分析和对实际信号的处理结果证明了此算法的可行性.-new algorithm is proposed for elassillcation and demodulation of MFSK
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Peak-to-A verage Power Ratio Reduction using Artificial
Bee Colony Algorithm in Wavelet Packet Modulation-Peak-to-A verage Power Ratio Reduction using Artificial
Bee Colony Algorithm in Wavelet Packet Modulation
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psk modulation: signal generation
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wavelet packet modulation thesis
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